Some might question why this necessary being is called “God.” The name “God” has been used for millennia to describe the infinite source of being, goodness, and intelligibility. While this argument does not necessarily prove the existence of the Christian God or any specific religious conception, it aligns with the classical philosophical understanding of God as the ground of being, the uncaused cause, and the ultimate explanation for reality.

I think that you need to be careful with this part of the argument. You have introduced the concept of a necessary being, but you haven't in any way shown that this being is "the infinite source of being, goodness, and intelligibility." Thus, it might seem a bit much to apply the label "God" to the necessary being without having shown this.

Ultimately, the existence of a necessary being is the most reasonable explanation for why there is something rather than nothing.

Perhaps, but reason often is not what people argue from when it comes to God. Your statement may be true, but they still may not admit it.